Lemma
MediumPermutations & combinations
AQuA-RAT train #20808 · Combinatorics · Permutations & combinations

How many ways could three bottle caps can be used to close…

How many ways could three bottle caps can be used to close five bottles of which two of the bottles will remain opened?

~8 minAnswer checked instantly

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #20808

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your answer

Checked against the answer in AQuA-RAT.